Sree Rayalaseema Hi-Strength Hypo Ltd, the torchbearer of the TGV Group is the only Indian manufacturer of Calcium Hypochlorite. Sree Rayalaseema Hi-Strength Hypo is one of the very few in the world, known for decades of dedicated research and development in water treatment and purification.Constantly raising our standard and hence, the global benchmark in water purification, Sree Rayalaseema Hi-Strength Hypo Ltd. has set an example for others to follow.